CN105174728A - Glass powder for crystalline silicon solar cell front silver paste and preparation method thereof - Google Patents
Glass powder for crystalline silicon solar cell front silver paste and preparation method thereof Download PDFInfo
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- CN105174728A CN105174728A CN201410253447.XA CN201410253447A CN105174728A CN 105174728 A CN105174728 A CN 105174728A CN 201410253447 A CN201410253447 A CN 201410253447A CN 105174728 A CN105174728 A CN 105174728A
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Abstract
The invention relates to the technical fields of lead-free glass powder and preparation method thereof, and more particularly, relates to a lead-free glass powder for a high-efficiency front silver paste and a preparation method thereof. The glass powder for the front silver paste comprises the components by the mass percentage: 35-63% TeO2, 18-46% of Bi2O3, 2-15% of SiO2, 0.5-6% of B2O3, 0.6-5% of ZnO, 1-4% of Al2O3, 0.8-3% of CuO, 0.5-2% of Ag2O, 0.5-7% of AgCl, and 0-10% of C2H3AgO2. The glass powder has a high-efficiency combustion-supporting silver powder, also can corrode an antireflection membrane, forms good silver/silicon ohmic contact, and has the characteristics of low softening temperature, good levelling property, good wettability, high adhesive force and the like. The glass powder is applied to the front silver paste for silicon solar cells, and is in favor of diffusion and migration of silver atoms; the sintering temperature and time are shortened; the antireflection membrane is corroded, so that silver blocks easily make direct contact with silicon slices, so as to form good silver/silicon ohmic contact.
Description
Technical field
The present invention relates to a kind of slurry glass powder, be specifically related to a kind of crystal silicon solar energy battery positive silver paste glass powder and preparation method thereof.
Background technology
The energy is the foundation stone of socio-economic development, is also the important leverage of human kind sustainable development, and sun power, as inexhaustible energy source, is undoubtedly the outstanding person in numerous energy.Current is that the photovoltaic industry of representative has welcome fast development with crystal silicon solar energy battery.
Holding at high price of the main raw material crystalline silicon of crystal silicon solar energy battery, in order to effectively reduce the cost of electricity-generating of crystal silicon solar energy battery, needs the efficiency of conversion improving crystal silicon solar energy battery.Efficiency often improves 1%, and the cost of photovoltaic system can reduce by 7%.Therefore, improving cell piece efficiency of conversion is the tireless pursuit of industry.Between in the past 2 ~ 3 years, the development of crystal silicon solar positive silver paste obtains development at full speed.Example is developed into the positive silver of du pont company, the development of the positive silver of Du Pont from PV149 to PV159 to PV16A widely used PV17F and the PV18A that promoting till now, its solid content and silver content are progressively increasing, and the depth-width ratio after printing-sintering is also improving step by step, thus reduce the shading-area of grid, increase the short-circuit current of cell silicon chip, thus also make the transformation efficiency of crystalline silicon be greatly improved.
Main ingredient in front side silver paste comprises silver powder, organic carrier, glass powder and additive etc., the character such as the combustion-supporting property of glass powder and corrosion antireflective coating directly have influence on the quality of sun power front side silver paste, sintering temperature and time can be shortened, form good silver/silicon ohmic contact.
Therefore, develop a kind of crystal silicon solar energy battery positive silver paste glass powder, meet the technical requirements of front side silver paste, make domestic front side silver paste suitable with external advanced Product Level qualitatively, there is larger technical meaning.
Summary of the invention
The present invention is directed to the These characteristics of prior art, provide one both to have efficient combustion-supporting silver powder, antireflective coating can be corroded again, form the crystal silicon solar energy battery positive silver paste glass powder of good silver/silicon ohmic contact.
The each constituent mass per-cent of crystal silicon solar energy battery positive silver paste glass powder of the present invention is: 35-63%TeO
2, 18-46%Bi
2o
3, 2-15%SiO
2, 0.5-6%B
2o
3, 0.6-5%ZnO, 1-4%Al
2o
3, 0.8-3%CuO, 0.5-2%Ag
2o, 0.5-7AgCl, 0-10%C
2h
3agO
2.
The starting material of described glass powder can be TeO
2, Bi
2o
3, SiO
2, B
2o
3, H
3bO
3, ZnO, Al
2o
3, CuO, Ag
2o, AgCl, C
2h
3agO
2in one or more.
Preparation method comprises the following steps:
(1) raw material takes and mixes: after being weighed up by the mass ratio designed by the raw material forming glass powder, put into stirrer, be uniformly mixed 1-2 hour;
(2) raw material drying: the glass powder raw material of mixing is put into freeze-day with constant temperature stove, dry 1-2 hour at 100-150 DEG C;
(3) high melt: be loaded in corundum crucible by dry glass powder raw material, then corundum crucible is placed in high temperature resistance furnace, controls temperature rise rate between 8-12 DEG C/min, melting under 800-950 DEG C of constant temperature, obtains the glass melt of clarification;
(4) quench: after glass metal is taken out from stove, pour between counter-rotational steel rider and quench, obtain glass disintegrating slag;
(5) ball mill crushing: take water as ball-milling medium, add organic dispersing agent, ball milling obtains D50 after 5 hours be 0.6-0.9 μm of glass powder.
The organic dispersing agent added in step (5) can be one or more in polyvinyl alcohol, polyacrylic acid, tween-80.
Compared with prior art, useful benefit of the present invention is: 1, efficiently help silver ink firing powder, shortens sintering temperature and time.2, corrode antireflective coating, be convenient to silver bullion and directly contact with silicon chip, form good silver/silicon ohmic contact.
Embodiment
Below in conjunction with embodiment, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.Embodiment 1 one kinds of crystal silicon solar energy battery positive silver paste glass powder are pressed row weight percent content and are weighed, and glass powder composition of raw materials is as follows: 44%TeO2,36%Bi2O3,8%SiO2,1.2%B2O3,3.8%ZnO, 2%Al2O3,0.9%CuO, 0.6%Ag2O, 1.5%AgCl, 2%C
2h
3agO
2.
Its preparation method is as follows:
(1) raw material takes and mixes: after being weighed up by the mass ratio designed by the raw material forming glass powder, put into stirrer, be uniformly mixed 1.5 hours;
(2) raw material drying: the glass powder raw material of mixing is put into freeze-day with constant temperature stove, drying 2 hours at 100 DEG C;
(3) high melt: be loaded in corundum crucible by dry glass powder raw material, then corundum crucible is placed in high temperature resistance furnace, controls temperature rise rate at 8 DEG C/min, melting under 900 DEG C of constant temperature, obtains the glass melt of clarification;
(4) quench: after glass metal is taken out from stove, pour between counter-rotational steel rider and quench, obtain glass disintegrating slag;
(5) ball mill crushing: take water as ball-milling medium, add organic dispersing agent, ball milling obtains the glass powder that D50 is 0.8 μm after 5 hours.
The organic dispersing agent wherein added in step (5) is polyvinyl alcohol and polyacrylic mixture.
Claims (4)
1. crystal silicon solar energy battery positive silver paste glass powder and preparation method thereof, is characterized in that, each constituent mass per-cent is: 35-63%TeO
2, 18-46%Bi
2o
3, 2-15%SiO
2, 0.5-6%B
2o
3, 0.6-5%ZnO, 1-4%Al
2o
3, 0.8-3%CuO, 0.5-2%Ag
2o, 0.5-7AgCl, 0-10%C
2h
3agO
2.
2. a kind of crystal silicon solar energy battery positive silver paste glass powder according to claim 1 and preparation method thereof, is characterized in that: the starting material of glass powder can be TeO
2, Bi
2o
3, SiO
2, B
2o
3, H
3bO
3, ZnO, Al
2o
3, CuO, Ag
2o, AgCl, C
2h
3agO
2in one or more.
3. a kind of crystal silicon solar energy battery positive silver paste glass powder according to claim 1 and preparation method thereof, is characterized in that: preparation method comprises the following steps:
(1) raw material takes and mixes: after being weighed up by the mass ratio designed by the raw material forming glass powder, put into stirrer, be uniformly mixed 1-2 hour;
(2) raw material drying: the glass powder raw material of mixing is put into freeze-day with constant temperature stove, dry 1-2 hour at 100-150 DEG C;
(3) high melt: be loaded in corundum crucible by dry glass powder raw material, then corundum crucible is placed in high temperature resistance furnace, controls temperature rise rate between 8-12 DEG C/min, melting under 800-950 DEG C of constant temperature, obtains the glass melt of clarification;
(4) quench: after glass metal is taken out from stove, pour between counter-rotational steel rider and quench, obtain glass disintegrating slag;
(5) ball mill crushing: take water as ball-milling medium, add organic dispersing agent, ball milling obtains D50 after 5 hours be 0.6-0.9 μm of glass powder.
4. a kind of crystal silicon solar energy battery positive silver paste glass powder according to claim 2 and preparation method thereof, is characterized in that: the organic dispersing agent added in step (5) can be one or more in polyvinyl alcohol, polyacrylic acid, tween-80.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410253447.XA CN105174728A (en) | 2014-06-10 | 2014-06-10 | Glass powder for crystalline silicon solar cell front silver paste and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410253447.XA CN105174728A (en) | 2014-06-10 | 2014-06-10 | Glass powder for crystalline silicon solar cell front silver paste and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105174728A true CN105174728A (en) | 2015-12-23 |
Family
ID=54897264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410253447.XA Pending CN105174728A (en) | 2014-06-10 | 2014-06-10 | Glass powder for crystalline silicon solar cell front silver paste and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105825912A (en) * | 2016-05-13 | 2016-08-03 | 浙江光达电子科技有限公司 | Silicon solar cell front electrode leadless main grid slurry and preparation method thereof |
| CN106898412A (en) * | 2017-04-14 | 2017-06-27 | 北京市合众创能光电技术有限公司 | A kind of positive silver paste of crystal silicon solar energy battery containing microcrystalline glass powder |
| CN107689259A (en) * | 2016-08-04 | 2018-02-13 | 江苏正能电子科技有限公司 | A kind of unleaded positive silver paste of crystal silicon solar energy battery |
| CN108147672A (en) * | 2017-12-29 | 2018-06-12 | 北京市合众创能光电技术有限公司 | A kind of PERC crystal silicon solars positive silver paste glass dust |
| CN113617496A (en) * | 2021-08-06 | 2021-11-09 | Oppo广东移动通信有限公司 | Preparation method of nano glass powder, nano glass powder and glass product |
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| CN102456427A (en) * | 2010-10-30 | 2012-05-16 | 比亚迪股份有限公司 | Conductive paste and preparation method thereof |
| CN102898028A (en) * | 2012-09-27 | 2013-01-30 | 广州市儒兴科技开发有限公司 | Glass powder for front silver paste of crystalline silicon solar cell and preparation method thereof |
| CN102910828A (en) * | 2012-11-21 | 2013-02-06 | 贵州威顿晶磷电子材料有限公司 | Low-melting point glass powder for silver pastes on fronts of silicon solar cells and preparation method of glass powder |
| US20130234271A1 (en) * | 2005-04-14 | 2013-09-12 | E I Du Pont De Nemours And Company | Conductive compositions and processes for use in the manufacture of semiconductor devices |
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2014
- 2014-06-10 CN CN201410253447.XA patent/CN105174728A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130234271A1 (en) * | 2005-04-14 | 2013-09-12 | E I Du Pont De Nemours And Company | Conductive compositions and processes for use in the manufacture of semiconductor devices |
| CN102456427A (en) * | 2010-10-30 | 2012-05-16 | 比亚迪股份有限公司 | Conductive paste and preparation method thereof |
| CN102898028A (en) * | 2012-09-27 | 2013-01-30 | 广州市儒兴科技开发有限公司 | Glass powder for front silver paste of crystalline silicon solar cell and preparation method thereof |
| CN102910828A (en) * | 2012-11-21 | 2013-02-06 | 贵州威顿晶磷电子材料有限公司 | Low-melting point glass powder for silver pastes on fronts of silicon solar cells and preparation method of glass powder |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105825912A (en) * | 2016-05-13 | 2016-08-03 | 浙江光达电子科技有限公司 | Silicon solar cell front electrode leadless main grid slurry and preparation method thereof |
| CN105825912B (en) * | 2016-05-13 | 2017-09-12 | 浙江光达电子科技有限公司 | A kind of unleaded main grid paste of silicon solar cell front electrode and preparation method thereof |
| CN107689259A (en) * | 2016-08-04 | 2018-02-13 | 江苏正能电子科技有限公司 | A kind of unleaded positive silver paste of crystal silicon solar energy battery |
| CN106898412A (en) * | 2017-04-14 | 2017-06-27 | 北京市合众创能光电技术有限公司 | A kind of positive silver paste of crystal silicon solar energy battery containing microcrystalline glass powder |
| CN108147672A (en) * | 2017-12-29 | 2018-06-12 | 北京市合众创能光电技术有限公司 | A kind of PERC crystal silicon solars positive silver paste glass dust |
| CN113617496A (en) * | 2021-08-06 | 2021-11-09 | Oppo广东移动通信有限公司 | Preparation method of nano glass powder, nano glass powder and glass product |
| CN113617496B (en) * | 2021-08-06 | 2023-01-10 | Oppo广东移动通信有限公司 | Preparation method of nano glass powder, nano glass powder and glass product |
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Address after: Malaysia Industrial Park No. 88 Jinlong Road 412007 in Hunan province Zhuzhou city Tianyuan District Applicant after: HUNAN LEED THICK FILM PASTE CO., LTD. Address before: Malaysia Industrial Park No. 88 Jinlong Road 412007 in Hunan province Zhuzhou city Tianyuan District Applicant before: Hunan Leed Thick Film Paste Co., Ltd. |
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Application publication date: 20151223 |